CN102992464A - Disposal method for high-salinity wastewater and waste incineration fly ash - Google Patents
Disposal method for high-salinity wastewater and waste incineration fly ash Download PDFInfo
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- CN102992464A CN102992464A CN2012105209122A CN201210520912A CN102992464A CN 102992464 A CN102992464 A CN 102992464A CN 2012105209122 A CN2012105209122 A CN 2012105209122A CN 201210520912 A CN201210520912 A CN 201210520912A CN 102992464 A CN102992464 A CN 102992464A
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- incineration
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- sludge
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Abstract
The invention discloses a disposal method for high-salinity wastewater and waste incineration fly ash, relating to the technical field of disposal for the secondary pollutants generated by municipal waste disposal. The method comprises the following steps of: by taking the high-salinity wastewater as a solvent, mixing the waste incineration fly ash with the high-salinity wastewater, and performing water-washing; and after the water-washing is finished, performing solid-solution separation on the solid-solution mixture formed in the step 1. Via the disposal method for high-salinity wastewater and waste incineration fly ash provided by the invention, the content of soluble chlorine salts in the fly ash can be effectively reduced, thus being beneficial to further realize safe and environment-friendly disposal for the fly ash, and avoiding incremental wastes.
Description
Technical field
The present invention relates to the disposal technology field of the secondary pollutant of Urban Rubbish Disposal generation, particularly the method for disposal of a kind of high-salt wastewater, incineration of refuse flyash.
Background technology
Because waste incineration can realize the minimizing of domestic waste, innoxious and disposal of resources utilization, becomes the important development trend of domestic and international disposal of garbage.But waste incineration also produces certain flying ash, one of key property of flying dust is to contain a large amount of water-soluble villaumites, the existence of water-soluble villaumite has strengthened the disposal difficulty of flying dust, dispose incineration of refuse flyash as example take cement kiln, on the one hand, cement products has strict demand to the content of chlorine element, according to GB " general purpose portland cement (GB 175-2007) " requirement, chloride ion content in the chemistry of cement index≤0.06%; On the other hand, in the cement kiln high-temperature disposal process, the villaumite that volatilizees in the kiln high-temperature zone affects kiln production easily at cold zone condensation skinning, even causes stopping production.As seen, remove the further disposal that water-soluble villaumite in the flying dust is conducive to flying dust.Incineration of refuse flyash commonly used will produce massive laundering waste water in the washing disposal process, because a large amount of solvable villaumites wash-out from flying dust causes the secondary pollution high-salt wastewater to produce.
Summary of the invention
Technical problem to be solved by this invention provides the method for disposal of a kind of high-salt wastewater, incineration of refuse flyash, the method of disposal that has solved existing high-salt wastewater, incineration of refuse flyash will produce massive laundering waste water in the washing disposal process, since a large amount of solvable villaumites wash-out from incineration of refuse flyash, the problem that causes the secondary pollution high-salt wastewater to produce.
The method of disposal of high-salt wastewater provided by the invention, incineration of refuse flyash comprises:
Step 1: take high-salt wastewater as solvent, described incineration of refuse flyash is mixed with described high-salt wastewater and wash;
Step 2: after described washing was finished, the solidliquid mixture that described step 1 is formed carried out solid-liquid separation, obtains high density salt solution and primary sludge as supernatant liquor.
As preferably, present method also comprises:
Step 3: in described primary sludge, add dewatering agent.
As preferably, present method also comprises:
Step 4: after described step 3 is finished, further separate described primary sludge, obtain secondary sludge.
As preferably, present method also comprises:
Step 5: dry described secondary sludge.
As preferably, described dewatering agent add-on is 0.01%～0.05% of primary sludge weight.
As preferably, add dispersion agent in the high-salt wastewater in described step 1.
As preferably, described dispersion agent composition is vinylformic acid-2-acrylamido-2 '-methyl-propyl sulfonic acid copolymer, and relative molecular weight is 1000～10000.
As preferably, in described step 2, add flocculation agent.
As preferably, described flocculation agent composition is non-ionic polyacrylamide, and relative molecular weight is 5,000,000～7,000,000.
As preferably, it is characterized in that the proportioning mass percent scope of described high-salt wastewater and incineration of refuse flyash is 80%-95%:20%-5%.
Dispose incineration of refuse flyash with traditional water-washing method and compare, the method for disposal of high-salt wastewater provided by the invention, incineration of refuse flyash has following advantage:
(1) can dispose the flying dust that waste incineration produces nearby, utilize the water resources of high-salt wastewater, belong to " treatment of wastes with processes of wastes against one another ", the safety, the environmental protection that are conducive to the disposal of garbage waste are disposed;
(2) can effectively reduce solvable chloride content in the flying dust, be conducive to further realize that the safety and environmental protection of flying dust disposes, and can not produce the increment waste simultaneously;
(3) embody the cooperative disposal of disposal of garbage industry solid, liquid waste, had good environmental benefit and social benefit.
Embodiment
Embodiment 1
Be 15% incineration of refuse flyash and the high-salt wastewater of saltiness 2000mg/L with chlorinity, mix with 10% and 90% ratio.Add the 20ppm dispersion agent in the high-salt wastewater; Behind incineration of refuse flyash and the high-salt wastewater mixing 20min, add the 10ppm flocculation agent, after mixing, precipitate, clarifying, supernatant liquor is separated with primary sludge; Then the dewatering agent that adds sludge quantity 0.01% in primary sludge is realized the further separation of mud, salt solution obtaining final flying dust mud by the vacuum filtration mode, i.e. secondary sludge, water ratio about 35%; Mensuration shows that the cl content of mud is 1.30% after 105 ℃ of lower oven dry, and the concentration that produces supernatant liquor is 18000mg/L.
Embodiment 2
Be 15% incineration of refuse flyash and the high-salt wastewater of saltiness 7000mg/L with chlorinity, mix with 11.1% and 88.9% ratio.Add the 20ppm dispersion agent in the high-salt wastewater; Behind incineration of refuse flyash and the high-salt wastewater mixing 30min, add the 15ppm flocculation agent, after mixing, precipitation and clarification, will separate with primary sludge as the high strong brine of supernatant liquor; Then the dewatering agent that in primary sludge, adds sludge quantity 0.02%, realize the further separation (salt solution of further separating is incorporated in the above-mentioned supernatant liquor) of mud, salt solution by the filter press mode, obtain final flying dust mud, i.e. secondary sludge, water ratio 42%; Mensuration shows that the cl content of mud is 1.98% after 105 ℃ of lower oven dry, and the concentration that produces supernatant liquor is 25500mg/L.
Embodiment 3
Be 12% incineration of refuse flyash and the high-salt wastewater of saltiness 5000mg/L with chlorinity, mix with 18% and 82% ratio.Add the 30ppm dispersion agent in the high-salt wastewater; Behind incineration of refuse flyash and the high-salt wastewater mixing 25min, add the 20ppm flocculation agent, after mixing, precipitation and clarification, will separate with primary sludge as the high strong brine of supernatant liquor; Then 0.02% the dewatering agent that in primary sludge, adds sludge quantity, realize the further separation (salt solution of further separating is incorporated in the above-mentioned supernatant liquor) of mud, salt solution by the centrifuge dehydration mode, obtain final flying dust mud, i.e. secondary sludge, water ratio 43%; Mensuration shows that the cl content of mud is 2.52% after 105 ℃ of lower oven dry, and the concentration that produces supernatant liquor is 30500mg/L.
Embodiment 4
Be 21% incineration of refuse flyash and the high-salt wastewater of saltiness 5000mg/L with chlorinity, mix with 12% and 88% ratio.Add the 20ppm dispersion agent in the high-salt wastewater; Behind incineration of refuse flyash and the high-salt wastewater mixing 30min, add the 20ppm flocculation agent, after mixing, precipitation and clarification, will separate with primary sludge as the high strong brine of supernatant liquor; Then 0.03% the dewatering agent that in primary sludge, adds sludge quantity, realize the further separation (salt solution of further separating is incorporated in the above-mentioned supernatant liquor) of mud, salt solution by the vacuum filtration mode, obtain final flying dust mud, i.e. secondary sludge, water ratio 45%; Mensuration shows that the cl content of mud is 2.81% after 105 ℃ of lower oven dry, and the concentration that produces supernatant liquor is 33500mg/L.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to example the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. the method for disposal of a high-salt wastewater, incineration of refuse flyash is characterized in that, comprises:
Step 1: take high-salt wastewater as solvent, described incineration of refuse flyash is mixed with described high-salt wastewater and wash;
Step 2: after described washing was finished, the solidliquid mixture that described step 1 is formed carried out solid-liquid separation, obtains high density salt solution and primary sludge as supernatant liquor.
2. method of disposal as claimed in claim 1 is characterized in that, also comprises:
Step 3: in described primary sludge, add dewatering agent.
3. method of disposal as claimed in claim 2 is characterized in that, also comprises:
Step 4: after described step 3 is finished, further separate described primary sludge, obtain secondary sludge.
4. method of disposal as claimed in claim 3 is characterized in that, also comprises:
Step 5: dry described secondary sludge.
5. method of disposal as claimed in claim 2 is characterized in that, described dewatering agent add-on is 0.01%～0.05% of primary sludge weight.
6. method of disposal as claimed in claim 1 is characterized in that, adds dispersion agent in the high-salt wastewater in described step 1.
7. method of disposal as claimed in claim 6 is characterized in that, described dispersion agent composition is vinylformic acid-2-acrylamido-2 '-methyl-propyl sulfonic acid copolymer, and relative molecular weight is 1000～10000.
8. method of disposal as claimed in claim 1 is characterized in that, adds flocculation agent in described step 2.
9. method of disposal as claimed in claim 7 is characterized in that, described flocculation agent composition is non-ionic polyacrylamide, and relative molecular weight is 5,000,000～7,000,000.
10. such as each described method of disposal of claim 1 to 9, it is characterized in that the proportioning mass percent scope of described high-salt wastewater and incineration of refuse flyash is 80%-95%:20%-5%.
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| CN102992464B CN102992464B (en) | 2015-02-25 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5881499A (en) * | 1981-11-10 | 1983-05-16 | Mutsumi Takeda | Treatment of sludge |
| JP2006035088A (en) * | 2004-07-27 | 2006-02-09 | Mitsubishi Heavy Ind Ltd | Method for treating sludge and system for treating sludge |
| CN1947872A (en) * | 2006-11-09 | 2007-04-18 | 上海大学 | Water washing pretreatment method for making fly-ash from incineration harmless |
| CN101041493A (en) * | 2007-03-05 | 2007-09-26 | 王春梅 | Coal washing water treating agent and preparation method |
| CN101121560A (en) * | 2007-08-17 | 2008-02-13 | 傅绍斌 | Method for treating oil field ternary combination flooding extraction sewage |
| CN101260524A (en) * | 2008-04-15 | 2008-09-10 | 中国船舶重工集团公司第七二五研究所 | Cleaning corrosion inhibitor for vessel |
| CN101462835A (en) * | 2008-09-01 | 2009-06-24 | 上海市固体废物处置中心 | Innocent treatment method and apparatus for refuse burning flyash |
| CN101746900A (en) * | 2008-12-01 | 2010-06-23 | 中国石油化工股份有限公司 | Scale inhibitor combination, preparation method thereof and sewage treatment method |
| CN102442748A (en) * | 2010-10-12 | 2012-05-09 | 中国石油化工股份有限公司 | Deep treatment method of naphthenic acid wastewater |
| CN102786163A (en) * | 2011-05-18 | 2012-11-21 | 中国石油化工股份有限公司 | Circulating water processing method |
-
2012
- 2012-12-06 CN CN201210520912.2A patent/CN102992464B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5881499A (en) * | 1981-11-10 | 1983-05-16 | Mutsumi Takeda | Treatment of sludge |
| JP2006035088A (en) * | 2004-07-27 | 2006-02-09 | Mitsubishi Heavy Ind Ltd | Method for treating sludge and system for treating sludge |
| CN1947872A (en) * | 2006-11-09 | 2007-04-18 | 上海大学 | Water washing pretreatment method for making fly-ash from incineration harmless |
| CN101041493A (en) * | 2007-03-05 | 2007-09-26 | 王春梅 | Coal washing water treating agent and preparation method |
| CN101121560A (en) * | 2007-08-17 | 2008-02-13 | 傅绍斌 | Method for treating oil field ternary combination flooding extraction sewage |
| CN101260524A (en) * | 2008-04-15 | 2008-09-10 | 中国船舶重工集团公司第七二五研究所 | Cleaning corrosion inhibitor for vessel |
| CN101462835A (en) * | 2008-09-01 | 2009-06-24 | 上海市固体废物处置中心 | Innocent treatment method and apparatus for refuse burning flyash |
| CN101746900A (en) * | 2008-12-01 | 2010-06-23 | 中国石油化工股份有限公司 | Scale inhibitor combination, preparation method thereof and sewage treatment method |
| CN102442748A (en) * | 2010-10-12 | 2012-05-09 | 中国石油化工股份有限公司 | Deep treatment method of naphthenic acid wastewater |
| CN102786163A (en) * | 2011-05-18 | 2012-11-21 | 中国石油化工股份有限公司 | Circulating water processing method |
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| CN102992464B (en) | 2015-02-25 |
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Effective date of registration: 20160824 Address after: 100041, Shougang District, Beijing, Shijingshan District (75) capital Steel Corp Administrative Building No. 4 floor Patentee after: SHOUGANG ENVIRONMENTAL INDUSTRY CO., LTD. Address before: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee before: Capital Iron & Steel General Company |